From: un1t AT rz DOT uni-karlsruhe DOT de (Matthias Baas)
Newsgroups: comp.os.msdos.djgpp
Subject: typeinfo.h and math.h conflict
Date: Tue, 11 Feb 1997 07:42:04 GMT
Organization: University of Karlsruhe, Germany
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Hi,

I want to use the exception handling mechanism with a exception
hierarchy and I therefore #include the header file <typeinfo>.
I also #include the header file <math.h> and when I compile any
program with these two header files I get the following error:

In file included from test.cc:9:
g:/include/math.h:73: redefinition of `class exception'
g:/lang/cxx/std/stdexcep.h:58: previous definition here
g:/lang/cxx/std/stdexcep.h:58: previous declaration of
`exception::exception(const struct exception &)' with C++ linkage
g:/include/math.h:79: conflicts with new declaration with C linkage
g:/lang/cxx/std/stdexcep.h:58: previous declaration of `struct
exception & exception::operator =(const struct exception &)' with C++
linkage
g:/include/math.h:79: conflicts with new declaration with C linkage
g:/include/math.h:79: confused by earlier errors, bailing out

So why is there a class named "exception" in math.h and how can I
use math.h and exception handling together in my programs?

- Matthias -